(19)
(11) EP 2 894 192 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.08.2015 Bulletin 2015/33

(43) Date of publication A2:
15.07.2015 Bulletin 2015/29

(21) Application number: 15155799.8

(22) Date of filing: 07.10.2005
(51) International Patent Classification (IPC): 
C08J 11/18(2006.01)
B01J 19/20(2006.01)
C08J 11/10(2006.01)
 B01J 3/00(2006.01)
B01J 19/24(2006.01)
B01J 4/00(2006.01)
(84) Designated Contracting States:
BE DE ES FR GB IT

(30) Priority: 09.11.2004 JP 2004325606
29.03.2005 JP 2005096501

(62) Application number of the earlier application in accordance with Art. 76 EPC:
05790657.0 / 1829920

(71) Applicant: Sumitomo Bakelite Company Limited
Shinagawa-ku Tokyo 140-0002 (JP)

(72) Inventors:
  • Goto, Junya
    Tokyo, 140-0002 (JP)
  • Miyake, Sumiya
    Tokyo, 140-0002 (JP)
  • Ishikawa, Masaki
    Tokyo, 140-0002 (JP)
  • Shimoyachi, Kazunori
    Tokyo, 140-0002 (JP)

(74) Representative: Solf, Annkathrin 
Patent- und Rechtsanwälte Dr. Solf & Zapf Candidplatz 15
81543 München
81543 München (DE)

   


(54) Decomposition Reaction Apparatus, System for Producing Raw Material for Recycled Resin Composition, Method for Producing Raw Material for Recycled Resin Composition, Raw Material for Recycled Resin Composition, and Formed Article


(57) A system (1) for producing a raw material for a recycled resin composition, comprising:
- a decomposition reaction apparatus (2) for decomposing a thermosetting resin, comprising:
an introduction section (222) for introducing a resin composition containing the thermosetting resin and a solvent containing a monomer component of the thermosetting resin or a derivative of the monomer component;
a decomposition reaction section (221) for obtaining a first treated recovery product containing a recycled resin formed of the thermosetting resin having a reduced molecular weight, a solid residue and a low-boiling-point component containing the solvent, by heating and pressurizing the resin composition and the solvent and bringing the solvent into a supercritical state or a subcritical state, and the decomposition reaction section (221) being comprised of a tube-type reactor (22) which is adapted to perform the decomposition treatment with the resin composition and the solvent,
and
a discharge section (223) for discharging the first treated recovery product,
wherein the decomposition reaction apparatus (2) is adapted to continuously perform the introduction of the resin composition and the solvent into the introduction section (222), the decomposition treatment of the thermosetting resin in the decomposition reaction section (221) and the discharge of the first treated recovery product from the discharge section (223),
a first separating unit (51) serving as a solid-liquid separator, wherein the first separating unit (51) is designed for separating and removing the solid residue from the first treated recovery product,
a second separating unit (52) serving as a gas-liquid separator, wherein the second separating unit (52) is designed for separating and extracting the recycled resin with the reduced molecular weight as well as the low-boiling-point component containing the solvent from the first treated recovery product from which the solid residue has been removed,
wherein the first separating unit (51) and the second separating unit (52) are connected to the discharge section (223) of the decomposition reaction apparatus (2) in the named sequence.







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